Centers for Disease
Control and Prevention
Division of Cancer
Prevention and Control
4770 Buford Hwy NE
Atlanta, GA 30341
TTY: (888) 232-6348
United States Cancer Statistics (USCS)
Technical Notes: Statistical Methods: Suppression of Rates and Counts
Suppression for Reliability
Suppression for Confidentiality
Suppression for Bar Graphs
Suppression for Other Reasons
U.S. Census Regions and Divisions
Rates for U.S. Census regions and divisions were calculated by aggregating data reported from the states in each region and division. Only data from state registries that met USCS publication criteria were included in calculations of incidence rates for U.S. Census regions and divisions. Thus, where data for some states are excluded there is a potential for bias in the incidence rates for Census regions and divisions. We estimated cancer rates for Census regions or divisions with ineligible cancer registries by assuming that the incidence-to-mortality ratio in the portion of the region or division that was covered by eligible registries was the same as the incidence-to-mortality ratio in the portion that was not covered by eligible cancer registries. The age-adjusted incidence rates for U.S. Census regions and divisions are presented only if
This Web site presents the observed age-adjusted incidence rates for all U.S. Census regions and divisions. Case counts for U.S. Census regions and divisions are presented if all state cancer registries in the region or division met the criteria for inclusion, unless the count for one state in the region or division is suppressed due to a count below 16.
Total United States
Cancer incidence rates for the United States are aggregate rates based on cancer cases reported from central cancer registries that met the USCS publication criteria and are the best estimates of the U.S. cancer burden available that are based on observed data. Case counts for the U.S. incidence rates for all ages combined are presented.
1Brillinger DR. The natural variability of vital rates and associated statistics. Biometrics 1986;42(4):693–734.
2Doyle P, Lane JI, Theeuwes JM, Zayatz LM. Confidentiality, Disclosure, and Data Access: Theory and Practical Applications for Statistical Agencies. Amsterdam, The Netherlands: Elsevier Science; 2001.
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Page last reviewed: October 22, 2013
Page last updated: October 22, 2013
Content source: Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion